Flow sensor



FIG. 1 is a top, front, left perspective view of a flow sensor, showingour new design;

FIG. 2 is a top, front, right perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines of even length shown in the drawings illustrateportions of the flow sensor that form no part of the claimed design. Thebroken lines of uneven length illustrate the line shadings and contoursof the claimed design and form no part thereof.

CLAIM The ornamental design for a flow sensor, as shown and described.